公开(公告)号：US20160139541A1

公开(公告)日：2016-05-19

申请号：US14931705

申请日：2015-11-03

Applicant: Konica Minolta, Inc.

Inventor： Yasuyuki INADA ,  Yu MUKOBAYASHI ,  Yuusuke MANDAI ,  Kanji NAKAYAMA ,  Shinichi YOSHIMOTO ,  Junji KANDA

IPC: G03G15/08

CPC classification number: G03G15/0891 ,  G03G15/0893

Abstract: A developing device includes a developer carrying member and first and second conveyance members. The first conveyance member conveys a developer in a first direction through a first conveyance path to the developer carrying member. The second conveyance member conveys the developer in a second direction through a second conveyance path included in a circulation path along with the first conveyance path. The second conveyance member has a helical second screw around a second shaft. The second conveyance path includes a developer replenishing port and a developer discharge port. The second screw is approximately constant in diameter in a second section being a portion extending a predetermined distance from an end of the discharge port in the second direction when viewed in a top view. The second screw conveys the developer at a lower speed in the second section than on an upstream side with respect to the second section.

Abstract translation: 显影装置包括显影剂承载构件和第一和第二输送构件。 第一输送构件通过第一输送路径将显影剂沿第一方向输送到显影剂承载构件。 第二输送构件沿着第二方向通过包括在循环路径中的第二输送路径与第一输送路径一起输送显影剂。 第二传送构件具有围绕第二轴的螺旋形第二螺钉。 第二输送路径包括显影剂补充口和显影剂排出口。 第二螺杆在第二部分中的直径近似恒定，这是从俯视图看时沿第二方向从排出口的端部延伸预定距离的部分。 第二螺杆在第二部分中以比在第二部分的上游侧更低的速度传送显影剂。

公开(公告)号：US20180088508A1

公开(公告)日：2018-03-29

申请号：US15704950

申请日：2017-09-14

Applicant: KONICA MINOLTA, INC.

Inventor： Masanori KAWADA ,  Hiroaki UMEMOTO ,  Yohei ITO ,  Toshiaki SHIMA ,  Kazuyoshi OTA ,  Shinya TOKUTAKE ,  Hidetoshi NOGUCHI ,  Shinichi YOSHIMOTO ,  Futoshi OKAZAKI

IPC: G03G15/08

CPC classification number: G03G15/556 ,  G03G15/0879

Abstract: An image forming apparatus includes an image former which forms an image on an image carrying member with toner stored in a storage, a toner supplier which supplies toner to the storage by driving a conveyance member, a density measurer which causes the image former to form an image having a predetermined density at a predetermined timing and measures density of the formed image, a corrector which corrects a driving amount of the conveyance member based on the density measured by the density measurer, and a changer which changes a timing when the density measurer measures the density in response to an event that a predetermined condition is satisfied.

公开(公告)号：US20160363882A1

公开(公告)日：2016-12-15

申请号：US15159195

申请日：2016-05-19

Applicant: Konica Minolta, Inc.

Inventor： Kanji NAKAYAMA ,  Shinichi YOSHIMOTO ,  Junji KANDA ,  Yasuyuki INADA ,  Yuusuke MANDAI ,  Yu MUKOBAYASHI

IPC: G03G15/02 ,  G03G15/06

CPC classification number: G03G15/0266 ,  G03G15/065 ,  G03G21/14

Abstract: An image forming device includes: a charging unit configured to apply charging bias voltage to a charging member and charge a surface of an image carrying body; an exposure unit configured to expose the surface of the image carrying body, and form an electrostatic latent image; a developing unit configured to apply developing bias voltage to a developer carrying body, and develop the electrostatic latent image; and a control unit configured to control timing to start applying the developing bias voltage relative to timing to start applying the charging bias voltage, wherein the control unit performs control such that the larger an absolute value of the charging bias voltage is, the shorter an interval from timing to start applying the charging bias voltage to timing to start applying the developing bias voltage becomes, and such that the smaller the absolute value is, the longer the interval becomes.

Abstract translation: 图像形成装置包括：充电单元，被配置为向充电构件施加充电偏压并对图像承载体的表面充电; 曝光单元，被配置为暴露所述图像承载体的表面，并形成静电潜像; 显影单元，被配置为向显影剂承载体施加显影偏压，并显影静电潜像; 以及控制单元，被配置为控制相对于开始施加所述充电偏压的定时开始施加所述显影偏压的定时，其中所述控制单元进行控制，使得所述充电偏压的绝对值越大，间隔越短 从开始施加充电偏置电压到开始施加显影偏压的定时的定时开始，并且使得绝对值越小，间隔变得越长。